Evidence map›Paper›PMID 16078135›Full record

ArticlePharmaceutical research2005

Quantitative assessment of HIV-1 protease inhibitor interactions with drug efflux transporters in the blood-brain barrier.

Corbin J Bachmeier, Timothy J Spitzenberger, William F Elmquist, Donald W Miller

Abstract read
PubMed Publisher
In one paragraph

Article in Pharmaceutical research, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.1field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 69 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Review
  4. Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Therapeutic amprenavir concentrations in cerebrospinal fluid.Antimicrobial agents and chemotherapy · 2012
    Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Review
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 2 countries.

Corbin J BachmeierDepartment of Pharmaceutical Sciences, University of Nebraska Medical Center, 986025 Nebraska Medical Center, Omaha, Nebraska, USA.
Timothy J Spitzenberger
William F Elmquist
Donald W Miller
Nebraska Medical Center · USUniversity of Manitoba · CAUniversity of Minnesota · US

Funding

Improving the CNS Delivery of Anti-retroviral CompoundsR01NS042549 · NINDS · UNIVERSITY OF MINNESOTA TWIN CITIES · PI ELMQUIST, WILLIAM · 2002 to 2007
$1.4M
Influence of P-glycoprotein in treating brain tumorsR01CA093558 · NCI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI MILLER, DONALD W · 2004 to 2006
$568k
NCI NIH HHS R01-CA93558NINDS NIH HHS R01 NS042549NINDS NIH HHS R01-NS42549
6 · The paper itself

Abstract

purposeTo quantitatively characterize the drug efflux interactions of various HIV-1 protease inhibitors in an in vitro model of the blood-brain barrier (BBB) and to compare that with HIV-1 protease inhibitor stimulated P-glycoprotein (P-gp)-ATPase activity.

methodsCellular accumulation of the P-gp sensitive probe, rhodamine 123 (R123), and the mixed P-gp/multidrug resistance-associated protein (MRP) probe, 2',7'-bis(2-carboxyethyl)-5(6)-carboxyfluorescein (BCECF), were evaluated in primary cultured bovine brain microvessel endothelial cells (BBMEC) in the presence of various concentrations of HIV-1 protease inhibitors. The potency (IC50) and efficacy (Imax) of the drugs in the cell accumulation assays for P-gp and/or MRP was determined and compared to activity in a P-gp ATPase assay.

resultsFor R123 (P-gp probe), the rank order potency for inhibiting R123 accumulation in the BBMEC was saquinavir=nelfinavir>ritonavir=amprenavir>indinavir. This correlated well with the rank order affinity in the P-gp ATPase assay. The rank order potency for MRP-related drug efflux transporters, was nelfinavir>ritonavir>saquinavir>amprenavir>indinavir.

conclusionsHIV-1 protease inhibitors potently interact with both P-gp and MRP-related transporters in BBMEC. Characterization of the interactions between the HIV-1 protease inhibitors and drug efflux transporters in brain microvessel endothelial cells will provide insight into potential drug-drug interactions and permeability issues in the BBB.

Indexed as

Adenosine TriphosphatasesAnimalsATP Binding Cassette Transporter, Subfamily BBlood-Brain BarrierCarrier ProteinsCattleCells, CulturedDrug InteractionsEndothelial CellsFluoresceinsFluorescent DyesHIV-1HIV Protease InhibitorsIndicators and ReagentsRhodamine 1232',7'-bis(carboxyethyl)-5(6)-carboxyfluoresceinAdenosine TriphosphatasesATP Binding Cassette Transporter, Subfamily BCarrier ProteinsFluoresceinsFluorescent DyesHIV Protease InhibitorsIndicators and ReagentsRhodamine 123

Identifiers

PMID16078135
OpenAlexW2085782819

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.